Indeed mentioned in this list of captured artillery:
http://www.geocities.com/historyfan2002/toe/arturo/itart.htm
YUGOSLAVIA:
Skoda 100L22
Skoda 76L32 mod 28
Skoda 100L23 mod. 28
Skoda 47mm mod 37 and mod 38 AT
Skoda 37L48 mod 37 AT
Skoda 77L28 mod 5/32
Skoda 77L40 mod 28
Skoda 75L15 mod 28 Mountain Guns
Except that I cannot place the year 36 as production year, The Edge?
See also these pics:
http://www.network54.com/Forum/330333/message/1182369237/and+this+one-